CN107044518A - A kind of two grades of power transmissions - Google Patents
A kind of two grades of power transmissions Download PDFInfo
- Publication number
- CN107044518A CN107044518A CN201710096607.8A CN201710096607A CN107044518A CN 107044518 A CN107044518 A CN 107044518A CN 201710096607 A CN201710096607 A CN 201710096607A CN 107044518 A CN107044518 A CN 107044518A
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- CN
- China
- Prior art keywords
- gear
- heel row
- planet carrier
- brake
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
- F16H37/0813—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft
- F16H37/082—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft and additional planetary reduction gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
- Retarders (AREA)
Abstract
A kind of two grades of power transmissions, belong to speed reducer for electric vehicle technical field.The present invention causes speed changer structure cumbersome, the problem of transmission efficiency declines to solve to constitute the various of existing transmission element.The present invention includes hydraulic system, hydraulic system is connected with the first brake and second brake, first brake is connected with heel row sun gear, heel row sun gear is arranged on input shaft, second brake is connected with heel row planet carrier, the disposed inboard of heel row planet carrier has front-seat planet carrier, the disposed inboard of heel row planet carrier has front-seat planet carrier to be sleeved on input shaft, transmission drive gear is installed on front-seat planet carrier, transmission drive gear engages the transmission for realizing power with the transfer driven gear on power transmission shaft, finally impart power to the second gear on output shaft, send power to wheel.The present invention two grades of power transmission more compact structures of one kind, simply, it is easy to assembly, effectively increase the transmission efficiency of speed changer.
Description
Technical field
The present invention relates to a kind of the two of speed reducer for electric vehicle grade power transmission, belong to speed reducer for electric vehicle technology neck
Domain.
Background technology
It is well known that in automatic transmission used in orthodox car, the conversion between gear is real with two-part structure
It is existing, the gear that a part is made up of multiple planetary gear trains, another part be by each clutch, brake and individual event from
The shift component of clutch and its servo-drive system composition, because clutch and brake belong to friction element, with friction element
Increase, the efficiency reduction brought by friction loss is also unavoidable.Therefore, people studying always power loss it is smaller, knot
Structure is more compact, simple, power transmission easy to assembly, and this relatively conventional automatic transmission of device is more efficient, can be with
Used as speed reducer for electric vehicle.
The content of the invention
The invention aims to solve to constitute the various of existing transmission element, cause speed changer structure cumbersome, pass
The problem of efficiency declines is passed, and then a kind of two grades of power transmissions are provided.
Technical scheme：
A kind of two grades of power transmissions include hydraulic system, the first brake, second brake, heel row planet carrier, preceding
Rank carrier, it is heel row sun gear, front-seat sun gear, transmission drive gear, first gear, transfer driven gear, second gear, defeated
Enter axle, power transmission shaft and output shaft, input shaft, power transmission shaft and output shaft are arranged in parallel in casing successively, described hydraulic system
It is connected with the first brake and second brake, the first brake is connected with heel row sun gear, heel row sun gear is arranged on input
On axle, second brake is connected with heel row planet carrier, and one end of heel row planet carrier is arranged on input shaft by bearing, rear seniority among brothers and sisters
The other end of carrier is provided with being also equipped with heel row planetary gear, heel row on the front-seat ring gear of internal tooth arrangement, heel row planet carrier
The disposed inboard of planet carrier has front-seat planet carrier, and one end of front-seat planet carrier is provided with the heel row ring gear of internal tooth arrangement, front-seat
The other end of planet carrier is connected with transmission drive gear, and described heel row ring gear passes through the heel row on heel row planet carrier
Planetary gear and heel row sun gear are set up be provided with meshing relation, described front-seat planet carrier by bearing before rows of planetary tooth
Wheel, front-seat planetary gear sets up meshing relation with the front-seat sun gear on input shaft and front-seat ring gear；Described biography
First gear and transfer driven gear are installed, the driven transmission wheel is engaged with transmission drive gear, first gear on moving axis
Engaged with the second gear on output shaft.
It is preferred that：Described front-seat planet carrier is integrally formed with transmission drive gear.
It is preferred that：A support base is additionally provided with described casing, the support base is used to support front-seat planet carrier and transmission
The junction of drive gear.
It is preferred that：Differential mechanism is installed on described output shaft.
The invention has the advantages that：Two grades of power transmissions of one kind of the present invention are simple for structure, reasonable in design,
The decelerator of power transmission in this way can be made by the combination and separation of integrated electro-hydraulic control system control brake,
Vehicle electric energy utilization rate and distance travelled can be improved, its various aspects of performance is more protruded.
Brief description of the drawings
Fig. 1 is a kind of structure installation diagram of two grades of power transmissions；
Fig. 2 is the release of the first brake, the transfer principle figure of second brake cohesive process；
Fig. 3 is that the first brake is combined, and second brake discharges the transfer principle figure of process；
1- hydraulic systems in figure, the brakes of 2- first, 3- second brakes, 4- heel row planet carriers, 5- front rows planet carrier, 6-
Heel row sun gear, 7- transmission drive gears, 8- first gears, 9- transfer driven gears, 10- second gears, 11- input shafts, 12-
Power transmission shaft, 13- output shafts, 14- heel row planetary gears, 15- front rows planetary gear, 16- heel row ring gears, 17- front rows ring gear,
18- front rows sun gear, 19- support bases, 20- casings.
Embodiment
Embodiment one：Illustrate present embodiment, two grades of power transmissions of one kind of present embodiment with reference to Fig. 1
Including hydraulic system 1, the first brake 2, second brake 3, heel row planet carrier 4, front-seat planet carrier 5, heel row sun gear 6, preceding
Arrange sun gear 18, transmission drive gear 7, first gear 8, transfer driven gear 9, second gear 10, input shaft 11, power transmission shaft 12
With output shaft 13, input shaft 11, power transmission shaft 12 and output shaft 13 are arranged in parallel in casing 20 successively, described hydraulic system 1
It is connected with the first brake 2 and second brake 3, the first brake 2 is connected with heel row sun gear 6, and heel row sun gear 6 is arranged on
On input shaft 11, second brake 3 is connected with heel row planet carrier 4, and one end of heel row planet carrier 4 is arranged on input shaft by bearing
On 11, the other end of heel row planet carrier 4 is provided with after being also equipped with the front-seat ring gear 17 of internal tooth arrangement, heel row planet carrier 4
Rows of planetary gear 14, the disposed inboard of heel row planet carrier 4 has front-seat planet carrier 5, and one end of front-seat planet carrier 5 is provided with internal tooth knot
The heel row ring gear 16 of structure, the other end of front-seat planet carrier 5 is connected with transmission drive gear 7, and described heel row ring gear 16 leads to
The heel row planetary gear 14 crossed on heel row planet carrier 4 sets up meshing relation, described preceding rows of planetary with heel row sun gear 6
Front-seat planetary gear 15, front-seat planetary gear 15 and the front-seat sun on input shaft 11 are provided with by bearing on frame 5
Wheel 18 and front-seat ring gear 17 set up meshing relation；First gear 8 and transfer driven gear are installed on described power transmission shaft 12
9, the driven transmission wheel 9 is engaged with transmission drive gear 7, first gear 8 and the second gear 10 on output shaft 13
Engagement；Differential mechanism is installed on described output shaft 13.It is arranged such, the first brake 2 is connected with heel row sun gear 6, heel row
Sun gear 6 realizes and engaged with heel row ring gear 16 that second brake 3 is connected with heel row planet carrier 4 by heel row planetary gear 14,
Front-seat ring gear 17 is set up with front-seat sun gear 18 and input shaft 11 by front-seat planetary gear 15 and is connected, heel row ring gear 16, preceding
Seniority among brothers and sisters carrier 5 and transmission drive gear 7 set up connection successively, are driven drive gear 7 and are engaged with transfer driven gear 9, be driven from
Moving gear 9 is linked into an integrated entity with first gear 8 by spline structure, and first gear 8 is engaged with second gear 10, front-seat sun gear
18 and input shaft 11 be connected with input power.
Further, heel row ring gear 16, front-seat planet carrier 5 and transmission drive gear 7 are formed in one structure.
When system needs to realize a certain gear, hydraulic system 1 controls the He of the first brake 2 according to the control of electric signal
Second brake 3 is acted respectively, and front-seat sun gear 18 and input shaft 11 are connected with input power.
First brake 2 is discharged (accompanying drawing 2), and second brake 3 is combined, and heel row planet carrier 4 and front-seat ring gear 17 are made
Dynamic, heel row sun gear 6 is not involved in power transmission in free-running state, and power is inputted from front-seat sun gear 18, input shaft 11,
Front-seat sun gear 18, which is rotated, drives the front-seat planetary gear 15 being engaged with to rotate, due to heel row planet carrier 4 and front-seat ring gear
17 are braked by second brake 3, and front-seat planet carrier 5 is rotated in the presence of front-seat planetary gear 15, and power is with front-seat planet carrier 5
Exported with transmission drive gear 7, the power of output is by being driven drive gear 7, transfer driven gear 9, first gear 8, second
Gear 10 is delivered to tire；
First brake 2 combines (accompanying drawing 3), and second brake 3 discharges, heel row sun gear 6 is braked, front-seat sun gear 18
And the power that input shaft 11 is inputted, front-seat ring gear 17 and heel row planet carrier 4 are delivered to by front-seat planetary gear 15, rear seniority among brothers and sisters
The rotation of carrier 4 drives heel row planetary gear 14 to rotate, and heel row planetary gear 14 is engaged with heel row ring gear 16, therefore preceding seniority among brothers and sisters
Carrier 5 is rotated in the presence of heel row ring gear 16, and power is exported with front-seat planet carrier 5 and transmission drive gear 7, output it is dynamic
Power is delivered to tire by being driven drive gear 7, transfer driven gear 9, first gear 8, second gear 10；
When switching between system needs two gears, it is necessary to by hydraulic system 1 in the first brake 2 and the second braking
Electro-hydraulic accurate control is carried out between device 3, when realizing that the first brake 2 is progressively combined, second brake 3 progressively discharges；Conversely, the
When two brakes 3 are progressively combined, the first brake 2 progressively discharges.
Embodiment two：Illustrate present embodiment, two grades of power transmissions of one kind of present embodiment with reference to Fig. 1
Described front-seat planet carrier 5 is integrally formed with transmission drive gear 7；A support base 19 is additionally provided with described casing 20, it is described
Support base 19 is arranged on the front-seat planet carrier 5 of support and the junction of transmission drive gear 7 plays a supportive role.It is arranged such, supports
Seat be used for support drive gear 7 in the stationarity of transmission process, it is to avoid because drive gear 7 because transmission stability difference cause tooth form
Deformation.
Present embodiment is the exemplary illustration to this patent, does not limit its protection domain, people in the art
Member can also be changed to its part, as long as no the Spirit Essence beyond this patent, all in the protection domain of this patent.
Claims (2)
1. a kind of two grades of power transmissions, including hydraulic system (1), the first brake (2), second brake (3), rear seniority among brothers and sisters
Carrier (4), front-seat planet carrier (5), heel row sun gear (6), front-seat sun gear (18), transmission drive gear (7), first gear
(8), transfer driven gear (9), second gear (10), input shaft (11), power transmission shaft (12) and output shaft (13), input shaft
(11), power transmission shaft (12) and output shaft (13) are arranged in parallel in casing (20) successively, it is characterised in that：Described hydraulic system
(1) it is connected with the first brake (2) and second brake (3), the first brake (2) is connected with heel row sun gear (6), and heel row is too
Sun wheel (6) is arranged on input shaft (11), and second brake (3) is connected with heel row planet carrier (4), and the one of heel row planet carrier (4)
End is arranged on input shaft (11) by bearing, and the other end of heel row planet carrier (4) is provided with the front-seat ring gear of internal tooth arrangement
(17) heel row planetary gear (14), is also equipped with heel row planet carrier (4), the disposed inboard of heel row planet carrier (4) has preceding seniority among brothers and sisters
Carrier (5), one end of front-seat planet carrier (5) is provided with the heel row ring gear (16) of internal tooth arrangement, front-seat planet carrier (5) it is another
End is connected with transmission drive gear (7), and described heel row ring gear (16) passes through the rear seniority among brothers and sisters on heel row planet carrier (4)
Star gear (14) is set up on meshing relation, described front-seat planet carrier (5) with heel row sun gear (6) and is provided with front row by bearing
Planetary gear (15), front-seat planetary gear (15) and the front-seat sun gear (18) on input shaft (11) and front-seat ring gear
(17) meshing relation is set up；First gear (8) and transfer driven gear (9) are installed on described power transmission shaft (12), it is described to pass
Dynamic driven pulley (9) is engaged with transmission drive gear (7), first gear (8) and the second gear on output shaft (13)
(10) engage.
2. a kind of two grades of power transmissions according to claim 1, it is characterised in that：Hydraulic system is to the first brake
(2) it is controlled with the cooperation of second brake (3), passes through the switching that planet arrangement mechanism realizes fast ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710096607.8A CN107044518B (en) | 2017-02-22 | 2017-02-22 | Second gear power transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710096607.8A CN107044518B (en) | 2017-02-22 | 2017-02-22 | Second gear power transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044518A true CN107044518A (en) | 2017-08-15 |
| CN107044518B CN107044518B (en) | 2023-06-23 |
Family
ID=59545352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710096607.8A Active CN107044518B (en) | 2017-02-22 | 2017-02-22 | Second gear power transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107044518B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606076A (en) * | 2017-10-26 | 2018-01-19 | 哈尔滨东安汽车发动机制造有限公司 | A kind of two gear power transmissions with synchronizer |
| CN112406507A (en) * | 2020-10-29 | 2021-02-26 | 东风汽车集团有限公司 | Hybrid power driving method and device, power system, vehicle and related equipment |
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2017
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606076A (en) * | 2017-10-26 | 2018-01-19 | 哈尔滨东安汽车发动机制造有限公司 | A kind of two gear power transmissions with synchronizer |
| CN112406507A (en) * | 2020-10-29 | 2021-02-26 | 东风汽车集团有限公司 | Hybrid power driving method and device, power system, vehicle and related equipment |
| CN112406507B (en) * | 2020-10-29 | 2024-04-16 | 东风汽车集团有限公司 | Hybrid power driving method and device, power system, vehicle and related equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107044518B (en) | 2023-06-23 |
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